Remote radio unit and active antenna system

Abstract

A remote radio unit, which includes a housing, a ventilation air channel, and a circuit component, where the housing is a sealed hollow cavity; the ventilation air channel passes through the housing, a top end of the ventilation air channel is connected to a top end surface of the housing in a sealed manner, and a bottom end of the ventilation air channel is connected to a bottom end surface of the housing in a sealed manner; and the circuit component is disposed inside the cavity, and is in contact with an external surface of a side wall of the ventilation air channel, so that heat generated by the circuit component is dissipated through the ventilation air channel.

What is claimed is: 
     
       1. A remote radio unit, comprising:
 a housing, a ventilation air channel and a radio unit including a circuit component, wherein 
 the housing is a cavity; 
 the ventilation air channel passes through the housing, a top end of the ventilation air channel is connected to a top end surface of the housing, and a bottom end of the ventilation air channel is connected to a bottom end surface of the housing; and 
 the circuit component is disposed inside the cavity, and is in contact with an external surface of a side wall of the ventilation air channel, wherein heat generated by the circuit component is dissipated through the ventilation air channel. 
 
     
     
       2. The remote radio unit according to  claim 1 , further comprising an active radiator, wherein
 the active radiator is disposed at a port of the ventilation air channel, or the active radiator is disposed inside the ventilation air channel, so as to improve a heat dissipation capability of the ventilation air channel. 
 
     
     
       3. The remote radio unit according to  claim 2 , wherein
 the active radiator includes a fan, and the fan is disposed at a bottom end port of the ventilation air channel, wherein wind generated by the fan flows into the ventilation air channel at the bottom end port of the ventilation air channel, and flows out of the ventilation air channel at a top end port of the ventilation air channel. 
 
     
     
       4. The remote radio unit according to  claim 1 , further comprising a heat sink fin, wherein
 the heat sink fin is disposed on an internal surface of the side wall of the ventilation air channel. 
 
     
     
       5. The remote radio unit according to  claim 1 , further comprising a spacer sealed at a top end port of the ventilation air channel, wherein
 the spacer includes air ventilating holes, so that wind, flowing into the top end port of the ventilation air channel, and within the ventilation channel flows out of the ventilation air channel through the air ventilating holes. 
 
     
     
       6. The remote radio unit according to  claim 1 , further comprising a cable exit mechanism, wherein
 the cable exit mechanism comprises a first cable connector disposed on the bottom end surface of the housing, and a second cable connector disposed on the top end surface of the housing; the first cable connector is configured to couple the circuit component and a base band unit (BBU); and the second connector is configured to couple the circuit component and an antenna element. 
 
     
     
       7. The remote radio unit according to  claim 1 , further comprising a sliding slot and a slide fitting to the sliding slot, wherein that the ventilation air channel passes through the housing is implemented by fitting the sliding slot to the slide; and
 the sliding slot is disposed on an internal surface of the side wall of the housing, and the slide is disposed on the external surface of the side wall of the ventilation air channel; or 
 the slide is disposed on the internal surface of the side wall of the housing, and the sliding slot is disposed on the external surface of the side wall of the ventilation air channel. 
 
     
     
       8. The remote radio unit according to  claim 1 , wherein the housing and the ventilation air channel are connected together to form a sealed hollow cavity, and the circuit component is disposed inside the sealed hollow cavity.